Unfortunate, but we won't be able to reuse the same .OBJ file once we
compile all pipeline tools with the `pascal` calling convention.
Separately compiling `th01/formats/img_data.cpp` would also turn into a
mess with the upcoming `#include` cleanup:
• `img_data.cpp` requires `ptn.hpp`,
• which will require `egc.h`,
• which requires `defconv.h`,
• which requires `GAME` to be defined,
• which makes no sense for pipeline tools.
Part of P0002, funded by GhostPhanom.
DOS is not the same thing as the underlying CPU, after all. A separate
file not only indicates to future port authors which parts of the code
are x86-specific, but it also speeds up build times…
… in theory, because removing 677 lines from 49 files each doesn't seem
to speed up the build as much as I had hoped? But apparently my whole
system mysteriously got faster in the meantime, and I was getting 22-23
seconds for the entire repo even before this commit. Good enough.
Part of P0134, funded by [Anonymous].
nmlgc